Comment 108 for bug 604635

Justin: Is a music-sync app different from other types of syncing, such as mail-sync or contact sync?

It seems to me that syncing is better done by allowing apps to temporarily enable the network, do the syncing and then disable it, rather than keeping the network awake for longer periods of time. Or did you mean that that's what they should do, but if the user puts the device to sleep during such a sync we should let the app finish the current sync before turning off the network connection?

In any case it sounds like in all situations when keeping the network "locked" the page would also want to keep the CPU going. It also sounds like we don't need to work any extra hard to avoid switching between wifi/3g/2g just because a network lock is held. I think we as a general principle should try to avoid switching between wifi/(3g+2g) whenever there is active network communication, but probably only for a limited time. In any case that seems like an orthogonal feature that's off-topic for this bug.